Fountain hypodermic syringe.



cuantas w. Karmann iup isrrNJMnv ir. sroorwnrr, l .j- Mrssounr.

or sr. Louis,

HYPQDERMB@ y Specification of Letters Patent.

I Patented une 25, itl-96?". i

y lpanama-nedhantai1e,190e. stanno. 339,234.

NERLY and BnNJAMrN E-S'rooirwnhn citizensof the United States, yandresidents of St.. Loma' Missouri, have invented certain new and useful Improvements Fountain HypodermicSyringes', of which the *following isa speciication-containing,a full, "clear7 Y and exact.description1, reference being had to the alcompanying drawings, forming a part hereon A inventionirelates to a fountain hypoy of water in Which'a medical compound in tablet form-is immersed 'and dissolved, thus forming the desired imixture to be injected.

'- f Our improved ,syringe isparticularly adaptedfor'eni'ergency use, and in this connecti'oni'it "very'hequently happens that the- 'f eine in tabletform' isI unable to make imme- -v dermicsyrnge andthe usual supply of Inedidatefu'se yof thesyringe owin 4to a laclroic Water infwhich to dissolve the vablets.4 But fin-our improved construction; the necessary supply' of water fis carried in a reservoir `inge, 'andvwhiohwater is allowed to discharge @ation con;

siste, incertain novel features of 'construction and arrangement of parts) which wilibefheref vinafternio're fully set forth, pc'yijntedfv out in .mpay

the claims,and -.illustrated' in the acc Figure Lis a Side mic s vleyation.l auhynpoderge of: our vimproved construction,

"with .the needle removedand' the lower end closed by ascrew'cap Fig.` 2 is a vertical sec-A f: tiontakengthrou h theoenter of a syringe;` 45.

Fig;` Slis a'vertiea A section taken through the center 4jojf"theiower-end .of the syringe barrel,

and showing tlie 'needle positioned thereon;

. Fig.. risen enlarged horizontal section taken v. on theline 4 4 of Fig- 2;V

Referring'by nuin'eralsto the accompany- `ing drawings 1-1 designates 'the main barrel .l `oiifthesyringe, which is provided with the usuallscrew cap 2,'.and throughwhich the graduated piston .rody AE! operates. Carried y isyringe, and the object of our invention'i to construct 'a hypodermic'syringe with a reservoir-in which is maintained a supply.

piston/i passesthe' opening 9.

a'partial vacuum in the lower portion of the by the low! r end of the rodi?) is a piston 1i,A

and forme in the lower end of the barrel i is an outlet 5 normally closedby a cap 6, and on which outlet isadapted to hepositioned a needle I7. lThese parts are of ordinary construction and do not materially differ from the syringe now inlgeneral use'.

Formed integral with, or fixed to the upper portion or. the barrel l, is a cylindrical,leserl voir 8, the capacity of which isapproxi mately equal to one-halfl the capacity of the barrel 1 and formed through the wall between'the harrel and reservoir 8 is a passageway 9.v Extending transversely through thefwall between the barrel i and reservoir 8,

and intersecting this passageway 9, is a tapered aperture 10, lnlwhich is arranged for rotation 'a tapered plug 11, through whichis.

formed .an aperture `12 that is adapted toc0- in'cide with the pa'ssa'gewaygQ. An ordinary washer and'nut are'loca'ted onone end of this plu-g,` 1.1, anda plate 13 is formed integral with the' forward end, by means of which 'the plug is`rotate'd to establishl or eut od co'rrnrmncation through the passageway -9.

VNormally closing't'he upper end'ofith'e reservoir 8 -is'a plu`g 14; The exterior surfaces of the Barrel 'l land reservoir 8 can he plated' andv4 polished asf'desired,' and the inner surfaces thereof,4 together with the surfacesof the `passageway. 9 vvand a :erturerlZ are plated or coated with a suitah einaterial which isim- .perviousto moistureand which Will not corrode and tarnish afterl coming in contact wthwater. f K

Hypodermiosyringes are usually carried in 4apocketcase together withwa nurnherotv small vials containing medicine in powdered or.tabletfform,.and to render ourimproved syringe serviceable, the plug '1I is turned` so as to cut 'oil communication 'through 'the 'passage 9, and the reservoir 8 isfilled with water. -When it is desired to use the syringe, i

the plug Mis removed and the'proper tahiet or powdered medicine is placed in the reservoir 8 andallowed tofdissolve in the water' i Y i therein. The plug l isjnow replaced, and the piston rodis .pulledupwardly until the barrel 1 and the taperedv plug 11 is new turned so that the aperture 12 coincides with the passageway 9, and the liquid from the reservoir 8 is free todischarge into the lower This creates f end of the barrel l beneath the pistone. rlfhe cap 6 is nowlr'enioved, and the needle 'Z placed 4in positibnon the lower end of the syringe, of a reservoir fixed to the barrel of ifrorn the'zlower endv ofthe reservoir'to the inbarrel, and the 'syringeis ready for service.- Thus, it will .be seen how we have provided a hypodermic syringe with a -reseryoir in which is carried a supply of waterto `loe used in 'an emergency, and which syringe is simple,

It will be readily understoodA that our iinto draw liquid from a bottle oryessel into said barrel. l

We claim .ljfhecombination with ahypoderrnio y the syrine there being a passageway leading two subscribing witnesses.

-terior yot the barrel, and a valve operated frein the'exterior of the syringe-forl controllingthe discharge of liquid through said passageway; substantially as specified.

2. The combination with the barrel of a hypdderinic syringe, 'cfa' reservoir formed integral with the upper portion' vof said barrel,

there being a passageway from the lower-end of the reservoir to the interior of thegbarrel, a

Valye arranged in said passageway andv means fixed on one endvof said valye whereby the saine is rotated to open o r close communication through, the as specified.

passageway; substantially 1n testimony whereof, we have signed our naines to this specification, in presence of CHARLESWIKENNERLY. BENJAMiN ,n.ppsrooKwELL.. `VVitn'esses:` *i

.M. P SMITILv JOHN C. Hrenom 

